body,
html {
  margin: 0;
  height: 100%;
  background: #f2f2f2;
  background-size: 100% 100%;
}

.center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.contain {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.stretch {
  display: block;
  width: 100%;
  height: 100%;
}

.cover {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (prefers-color-scheme: dark) {
  body {
    margin: 0;
    height: 100%;
    background: #f2f2f2;

    background-size: 100% 100%;
  }
}

/* Material Design circular progress indicator (matches Flutter's CircularProgressIndicator) */
.loading-spinner-container {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-spinner {
  width: 100%;
  height: 100%;
  display: block;
  animation: spinner-rotate 2s linear infinite;
}

.loading-spinner circle {
  stroke: #000000;
  stroke-linecap: round;
  animation: spinner-dash 1.5s ease-in-out infinite;
}

@keyframes spinner-rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes spinner-dash {
  0% {
    stroke-dasharray: 1, 126;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 63, 126;
    stroke-dashoffset: -22;
  }
  100% {
    stroke-dasharray: 63, 126;
    stroke-dashoffset: -125;
  }
}

/* Reduced motion support for accessibility */
@media (prefers-reduced-motion: reduce) {
  .loading-spinner {
    animation-duration: 4s;
  }

  .loading-spinner circle {
    animation: none;
    stroke-dasharray: 95, 126;
  }
}